Advice for impossible mage?

[Tembo]

I have read some strategies here, most of them include brining for example royal snakes, inquisitors or demonologist. And I can also bring thos units for the first 2-3 islands without any unit losses, but I just cant see how you can bring for example royal snakes or inqusitors to verona and montero and further, since a lot of them go down in a single puch? without getting any losses I mean....

The only way I have cleared the first four islands and a bit of Verona witout any unit lost is by brining cyclops, trolls, repair, droids, repair droids, guard droids..however haveing to repair droids in your army cause the battles to take long time..and I cant seem to be able to make Verona/Monterro...I use treausure searcher to be able to buy all +intellect stuff I find, I spam flaming arrow and traps but I just dont seem to be able get though Verona without huge losses. And ofcourse i get medals and do all quest and get all banners and these basic stuff..Any advice on what I am doing wrong?

I also wonder how you do to bring "weak" ranged like demonologist? If I bring them in Verona ranged units target them and like 2 hits will be more than they can res..